Frameset Template
Celestia, a real-time 3D space simulation featuring a database of over 100,000 ... Welcome to Celestia ... Celestia runs on Windows, Linux, and Mac OS X. ...
http://celestia.sourceforge.net/
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astronomy
space
software
science
freeware
planetarium
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opensource
simulation
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The Worlds of David Darling
No information avaiable
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science
astronomy
space
reference
encyclopedia
physics
technology
energy
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Explore the planet Mars with realistic Mars habitats, rockets, ground cars and robots
Explore the planet Mars with realistic habitats, rockets, ground cars, and robots.
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mars
space
science
astronomy
interactive
planets
images
cosmology
physics
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AAVSO: American Association of Variable Star Observers
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astronomy
science
space
variables
stars
research
reference
education
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astro
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Hubble Heritage Gallery of Images
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astronomy
space
hubble
photography
images
science
photo
photos
cool
art
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SETI Institute
Engaged in scientific and educational projects relevant to the nature, distribution, and ... Welcome to SETI.org! Search: What Will Aliens Really Look Like? ...
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astronomy
science
seti
space
research
ufo
news
aliens
education
inspiration
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Open Source Alternative - Find Open Source Alternatives to commercial software
Find open source software alternatives for well-known commercial products. Includes titles for all operating systems.
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opensource
software
freeware
free
linux
tools
windows
reference
alternative
open
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NASA Science - Science Mission Directorate
Research news from NASA.
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science
nasa
space
astronomy
education
physics
kids
reference
resources
links
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Imagine The Universe! Home Page
Dedicated to discussion about the universe, how it is evolving, and the kinds of objects and phenomena it contains. A service of NASA's High-Energy Astrophysics ...
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astronomy
science
space
nasa
education
physics
universe
astrophysics
kids
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The Chandra X-ray Observatory Center :: Gateway to the Universe of X-ray Astronomy!
Designed to observe X-rays from high energy regions of the universe.
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astronomy
space
science
chandra
nasa
x-ray
photography
observatories
images
telescope
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Sea and Sky - Explore the Oceans Below and the Skies Above
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science
astronomy
space
sea
education
ocean
oceanography
interactive
learning
sky
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